怎样动态产生视图？例如树控件双击，就动态生成一个视图？高手指点啊，在线等呢

Question

就像vc一样，在左边的树行控件双击，右边就会产生一个视图。
我试过用CWinApp::OnFileNew();
但是不行，OnFileNew()是protected的
试过用pDoc->OnNewDocument();
也是出现错误
具体怎么实现，高手给点提示啊！
谢谢了！

Answer 1

这个需要自己写一个函数void CRightPaneFrame::SwitchToView(UINT nView)，树行控件双击对view进行付值，

Answer 2

先把视图创建好，在点击tree的时候只是切换视图//=============================================================================
// name:     SwitchToView
// function: switch view in main view
//=============================================================================
void CMainFrame::SwitchToView(eView curView)
{
CView* pOldActiveView = (CView*)GetActiveView(); ASSERT( pOldActiveView != NULL ); if( pOldActiveView->IsKindOf(RUNTIME_CLASS(CExpSettingView)) )
pOldActiveView = (CView*)pOldActiveView->GetParent()->GetParent();
else if( pOldActiveView->IsKindOf(RUNTIME_CLASS(CArenaView)) )
pOldActiveView = (CView*)pOldActiveView->GetParent();    CView* pNewActiveView = (CView*) GetDlgItem(curView);

    if (pNewActiveView == NULL) {
        switch (curView) {
        case EXPDESIGN:
            pNewActiveView = (CView*) new CExpDesignView;
            break;
        case EXPARENADEF:
            pNewActiveView = (CView*) new CExpArenaDefView;
            break;
        }
        CCreateContext context;
        context.m_pCurrentDoc = pOldActiveView->GetDocument();        pNewActiveView->Create(NULL, NULL, WS_BORDER|WS_CHILD|WS_VISIBLE,
            CFrameWnd::rectDefault, this, curView, &context);//
        pNewActiveView->OnInitialUpdate();
    } SetActiveView(pNewActiveView);    pOldActiveView->ShowWindow(SW_HIDE);
    pNewActiveView->ShowWindow(SW_SHOW); eView oldView;
if( pOldActiveView->GetRuntimeClass() == RUNTIME_CLASS(CExpSettingView) ||
pOldActiveView->GetRuntimeClass() == RUNTIME_CLASS(CExpDesignView))
oldView = EXPDESIGN;
else if( pOldActiveView->GetRuntimeClass() == RUNTIME_CLASS(CArenaView) ||
     pOldActiveView->GetRuntimeClass() == RUNTIME_CLASS(CExpArenaDefView) )
oldView = EXPARENADEF;
pOldActiveView->SetDlgCtrlID(oldView);             pNewActiveView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
    RecalcLayout(); m_eView = curView;
}

Answer 3

CMDIChildWnd *pActiveChild=MDIGetActive();
CDocument *pDocument;
if(pActiveChild==NULL  || 
(pDocument=pActiveChild->GetActiveDocument())==NULL)
{
TRACE("Warning: No active document for new View opened.\n");
AfxMessageBox(AFX_IDP_COMMAND_FAILURE);
return;
} // Otherwise we have a new frame
CDocTemplate *pTemplate=((CxxxApp*)AfxGetApp())->m_pxxxTemplate;
ASSERT_VALID(pTemplate);
CFrameWnd *pFrame=
pTemplate->CreateNewFrame(pDocument,pActiveChild);
if(pFrame==NULL)
{
TRACE("Warning: failed to create new frame.\n");
AfxMessageBox(AFX_IDP_COMMAND_FAILURE);
return;
} pTemplate->InitialUpdateFrame(pFrame,pDocument);